Experimental Station Heard on 30 Meters
From the ARRL Letter:
IARUMS has received reports of short “beeps” exactly 1 second apart, as well as frequency hopping between 10,108 and 10,115 kHz and 18,834 and 18,899 kHz. The signals are believed to emanate from a site near Chicago associated with an FCC-licensed experimental operation involved with low-latency exchange trading on HF (see “Experiments Look to Leverage Low-Latency HF to Shave Microseconds off Trade Times <http://www.arrl.org/news/expe
YCCC member Fred Coelho, WX1S writes on the YCCC reflector:
“More on our 30 meter intruder. I’m not sure if this is what we were hearing last month but a signal (beep) at 1 second apart sounds about right. I copied this from the latest ARRL letter.”